This page was illustrated in Herat, Afghanistan, around 1425. The book was the Majmac al-tawarikh (The Compendium of Histories). Although some beautiful illuminations of manuscripts were done in Afghanistan, the style of this item is more folksy
Mohammed is shown riding a dromedary on one of his journeys - his face is unveiled, and his features are clearly visible. The small flame behind his turban helps differentiate him from his companion, as well as his prominent position in the composition.
The beast he rides is clearly the Arabian dromedary rather than the local two-humped Bactrian Camel, which unfortunately is now becoming endangered.